The Library is currently in the process of being upgraded from Oracle Database Version 11.2.0.3 to
12.1.0.1. Demos are being upgraded to reflect the new Container paradigm as well as EBR (Edition Based Redefinition) and may contain
references to CDBs, PDBs, and other objects you may not be familiar with such as CDB_OBJECTS_AE: Welcome to 12c.

Purpose

A group of related operators of great value in date comparison

Data Types

CREATE OR REPLACE TYPE wm_period AS OBJECT (
validfrom TIMESTAMP WITH TIME ZONE,
validtill TIMESTAMP WITH TIME ZONE);

Dependencies

OWM_VT_PKG

Security Model

conn / as sysdba

ALTER USER wmsys ACCOUNT UNLOCK IDENTIFIED BY wmsys;

For other schemas to have access to WMSYS objects explicit EXECUTE permission on the object should be granted.